The proteins that carry out functions inside our bodies are held together by our cells using the information contained within our DNA. They create different amino acid sequences, amino acids being the essential units that compose proteins. The sequence of these amino acids determines characteristics such as shape, function and interaction with other proteins.
There are 20 different kinds of amino acids that make up our proteins, and that are found within all living things, be they animals, proteins, bacteria, etc. All except for nine of these amino acids can be produced by our bodies. These are known as essential amino acids, which should be included in our diets. The proteins in our bodies are constantly being renewed, and many of the amino acids that make them up are recycled. Nevertheless, recycling is 100% effective, but requires that a certain amount of proteins be consumed so that our required amino acid levels are met. In some cases, such as during a growth spurt, more proteins may be required.
The proteins we consume in our diets are used for one of two things:
Creation of new proteins means more energy and cellular health, which in turn means a better quality of life.
-Alberts, B., Bray, D., Lewis, J., Raff, M., Roberts, K., Watson, J. D. (1994) Molecular biology of the cell. Third edition. Pp 22, 73-74. New York. Garland Publishing, Inc.
-Rémésy, C., (2004) Alimentación y salud. 1ra edición. pp 22-23. Buenos Aires. Siglo XXI Editores Argentina, S.A.